有機硫黄化合物の研究(第10報)固相における1-Methyl-4-oxo-cis-2,6-diphenylthianium Tetrafluoroborateとハロゲン化アルカリの反応

概要

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The solid state reactions between 1-methyl-4-oxo-cis-2,6-diphenylthianium tetrafluoroborate (1) and several alkali halides were ascertained by the infrared absorption spectrometry and powder X-ray diffraction. Various facts concerning these reactions indicate that an ion exchange occurs after molecules of 1 diffuse into alkali halides. In the cases of KCl and KBr, elimination reaction proceeds by withdrawal of hydrogen from 3-position of oxothianium ring as a result that chloride and bromide ions produced by the ion exchange act as a base. In this process, it turned out that the reaction proceeds by an anion mechanism. In the case of KI, however, an iodide ion acts as nucleophilic reagent to give demethylated product (4-oxo-cis-2,6-diphenylthiane).
公益社団法人日本薬学会の論文
1985-09-25